Safe



FIG. 1 is a perspective view of the Design for a safe;

FIG. 2 is an elevational view of the front of the safe;

FIG. 3 is an elevational view of the top of the safe;

FIG. 4 is an elevational view of the left side of the safe;

FIG. 5 is an elevational view of the right side of the safe;

FIG. 6 is an elevational view of the back of the safe; and,

FIG. 7 is an elevational view of the bottom of the safe. 

I claim the ornamental design for a safe, as shown and described. 